參數資料
型號: M37540M4T-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機
文件頁數: 39/64頁
文件大?。?/td> 668K
代理商: M37540M4T-XXXFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7540 Group
MITSUBISHI MICROCOMPUTERS
39
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
Fig. 47 Block diagram of internal clock generating circuit (for ceramic resonator)
Fig. 48 Block diagram of internal clock generating circuit (for RC oscillation)
S
R
Q
S
R
Q
1/2
Rd
R
S
Q
Rf
1/4
1/2
WIT
instruction
STP instruction
Timing
φ
(Internal clock)
STP instruction
Interrupt request
Reset
Interrupt disable flag l
High-speed mode
Middle-speed mode
Prescaler 1
Timer 1
Main clock division
ratio selection bit
Double-speed mode
Ring oscillator mode
Ring oscillator
(Note)
Note
:
Ring oscillator is used only for starting.
X
OUT
X
IN
1/8
S
R
Q
S
R
Q
1/2
R
S
Q
1/4
1/2
WIT
instruction
STP instruction
Timing
φ
(Internal clock)
STP instruction
Interrupt request
Reset
Interrupt disable flag l
High-speed mode
Middle-speed mode
Prescaler 1
Timer 1
Main clock division
ratio selection bit
Double-speed mode
Ring oscillator mode
Ring oscillator
(Note)
Note:
Ring oscillator is used only for starting.
X
OUT
X
IN
Delay
1/8
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